Genomic and structural organization of Drosophila melanogaster G elements.
AUTOR(ES)
Di Nocera, P P
RESUMO
The properties and the genomic organization of G elements, a moderately repeated DNA family of D. melanogaster, are reported. G elements lack terminal repeats, generate target site duplications at the point of insertion and exhibit at one end a stretch of A residues of variable length. In a large number of recombinant clones analyzed G elements occur in tandem arrays, interspersed with specific ribosomal DNA (rDNA) segments. This arrangement results from the insertion of members of the G family within the nontranscribed spacer (NTS) of rDNA units. Similarity of the site of integration of G elements to that of ribosomal DNA insertions suggests that distinct DNA sequences might have been inserted into rDNA through a partly common pathway.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=339457Documentos Relacionados
- Developmental expression of Drosophila melanogaster retrovirus-like transposable elements.
- Structure and genomic organization of I elements involved in I-R hybrid dysgenesis in Drosophila melanogaster.
- Segregation Distortion in Drosophila Melanogaster: Genomic Organization of Responder Sequences
- Transposable elements are stable structural components of Drosophila melanogaster heterochromatin.
- Genomic organization and transcription of the alpha beta heat shock DNA in Drosophila melanogaster.